Transactions of Materials and Heat Treatment

Title：Determinations of thermal expansion coefficient of spinning die design for aluminum alloy wheels

Authors： Zhang Lijuan

Unit： Environment Management College of China

KeyWords： die thermal expansion coefficient numerical simulation spinning process

ClassificationCode：TG386

year,vol(issue):pagenumber：2014,39(3):99-103

Abstract：

Steel H13 with higher price is used for aluminum wheel spinning die.In order to reduce the cost of die and on the premise of not affecting the strength and hardness of spinning die, 5CrMnMo steel was selected as spinning die material. The thermal expansion coefficients of spinning die for 5CrMnMo and steel H13 are different，which affects the cooperation between spinning die and blank. In order to redesign the thermal expansion coefficient of spinning die, physical test and numerical simulation analysis for 5CrMnMo steel of spinning die were conducted，and the thermal expansion coefficient of spinning die was determined. The results show that the mold thermal expansion coefficient of 1.0064 is more reasonable when using 5CrMnMo steel for die material, with which the wheel distortion is significantly reduced and the material utilization is increased.

Funds：

秦皇岛市科学技术研究与发展计划项目（2012021A122）

Reference：

［1］孔玲,张立娟,常海平,等.铸旋铝合金轮毂旋压模具设计及压料方式研究[J].制造技术与机床, 2011, (3):142-143, 147.Kong Ling,Zhang Lijuan,Chang Haiping,et al. Study on Al-alloy wheel spinning die and the blank holder mode[J].Manufacturing Technology & Machine Tool,2011, (3):142-143, 147.
［2］张立娟,周宏伟,韩云,等.铸旋铝合金轮毂对旋压设备的需求分析[J].锻压技术,2010, 35(4):175-178.Zhang Lijuan, Zhou Hongwei, Han Yun,et al. Requirement analysis of spin casting aluminum wheel on spinning equipment[J]. Forging & Stamping Technology,2010, 35(4):175-178.
［3］宋鸿武,李昌海,常海平,等.高强韧铝合金轮毂的轻量化铸旋新工艺[J].稀有金属,2012, 36(4):630-635.Song Hongwu，Li Changhai，Chang Haiping, et al. A new cast spinning process for light weight aluminum alloy wheels[J]. Chinese Journal of Rare Metals,2012, 36(4):630-635.
［4］GB／T 7320-2008. 耐火材料热膨胀试验方法[S].GB／T 7320-2008. Refractory materials determination of thermal expansion[S].
［5］GB／T 4339-2008. 金属材料热膨胀特征参数的测定[S]. GB／T 4339-2008. Determination of thermal expansion characteristic parameters of metallic materials[S].

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